Merge pull request #46 from etherspot/optimism-etherscan-gas-fee

feat: use etherscan for optimism gas fees

Author: 0xSulpiride

lerna.json

@@ -4,7 +4,7 @@
   ],
   "npmClient": "yarn",
   "useWorkspaces": true,
-  "version": "0.0.10",
+  "version": "0.0.11",
   "stream": "true",
   "command": {
     "version": {

package.json

@@ -1,7 +1,7 @@
 {
   "name": "root",
   "private": true,
-  "version": "0.0.10",
+  "version": "0.0.11",
   "engines": {
       "node": ">=18.0.0"
     },

packages/api/package.json

@@ -1,6 +1,6 @@
 {
   "name": "api",
-  "version": "0.0.10",
+  "version": "0.0.11",
   "description": "The API module of Etherspot bundler client",
   "author": "Etherspot",
   "homepage": "https://https://github.com/etherspot/skandha#readme",
@@ -35,12 +35,12 @@
     "class-transformer": "0.5.1",
     "class-validator": "0.14.0",
     "ethers": "5.7.2",
-    "executor": "^0.0.10",
+    "executor": "^0.0.11",
     "fastify": "4.14.1",
     "pino": "8.11.0",
     "pino-pretty": "10.0.0",
     "reflect-metadata": "0.1.13",
-    "types": "^0.0.10"
+    "types": "^0.0.11"
   },
   "devDependencies": {
     "@types/connect": "3.4.35"

packages/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "cli",
-  "version": "0.0.10",
+  "version": "0.0.11",
   "description": "> TODO: description",
   "author": "zincoshine <psramanuj@gmail.com>",
   "homepage": "https://https://github.com/etherspot/skandha#readme",
@@ -31,13 +31,13 @@
     "url": "https://https://github.com/etherspot/skandha/issues"
   },
   "dependencies": {
-    "api": "^0.0.10",
-    "db": "^0.0.10",
-    "executor": "^0.0.10",
+    "api": "^0.0.11",
+    "db": "^0.0.11",
+    "executor": "^0.0.11",
     "find-up": "5.0.0",
     "got": "12.5.3",
     "js-yaml": "4.1.0",
-    "types": "^0.0.10",
+    "types": "^0.0.11",
     "yargs": "17.6.2"
   },
   "devDependencies": {

packages/db/package.json

@@ -1,6 +1,6 @@
 {
   "name": "db",
-  "version": "0.0.10",
+  "version": "0.0.11",
   "description": "The DB module of Etherspot bundler client",
   "author": "Etherspot",
   "homepage": "https://github.com/etherspot/etherspot-bundler#readme",
@@ -37,6 +37,6 @@
   "devDependencies": {
     "@types/rocksdb": "3.0.1",
     "prettier": "^2.8.4",
-    "types": "^0.0.10"
+    "types": "^0.0.11"
   }
 }

packages/executor/package.json

@@ -1,6 +1,6 @@
 {
   "name": "executor",
-  "version": "0.0.10",
+  "version": "0.0.11",
   "description": "The Relayer module of Etherspot bundler client",
   "author": "Etherspot",
   "homepage": "https://https://github.com/etherspot/skandha#readme",
@@ -33,7 +33,7 @@
   "dependencies": {
     "async-mutex": "0.4.0",
     "ethers": "5.7.2",
-    "params": "^0.0.10",
-    "types": "^0.0.10"
+    "params": "^0.0.11",
+    "types": "^0.0.11"
   }
 }

packages/executor/src/utils/getGasFee.ts

@@ -19,6 +19,16 @@ export const getGasFee = async (
       console.error(`Couldn't fetch fee data for matic: ${err}`);
     }
   }
+
+  if (network === "optimism") {
+    try {
+      return getOptimismGasFee();
+    } catch (err) {
+      // eslint-disable-next-line no-console
+      console.error(`Couldn't fetch fee data for optimism: ${err}`);
+    }
+  }
+
   try {
     const feeData = await provider.getFeeData();
     return {
@@ -51,3 +61,23 @@ export const getMaticGasFee = async (): Promise<IGetGasFeeResult> => {
     gasPrice: parseGwei(data.fast.maxFee),
   };
 };
+
+export const getEtherscanGasFee = async (
+  apiUrl: string,
+  apiKey: string | undefined = undefined
+): Promise<IGetGasFeeResult> => {
+  let oracle = `${apiUrl}?module=proxy&action=eth_gasPrice`;
+  if (apiKey) {
+    oracle += `&apikey=${apiKey}`;
+  }
+  const data = await (await fetch(oracle)).json();
+  const gasPrice = ethers.BigNumber.from(data.result);
+  return {
+    maxPriorityFeePerGas: gasPrice,
+    maxFeePerGas: gasPrice,
+    gasPrice: gasPrice,
+  };
+};
+
+export const getOptimismGasFee = (): Promise<IGetGasFeeResult> =>
+  getEtherscanGasFee("https://api-optimistic.etherscan.io/api");

packages/params/package.json

@@ -1,6 +1,6 @@
 {
   "name": "params",
-  "version": "0.0.10",
+  "version": "0.0.11",
   "description": "Various bundler parameters",
   "author": "Etherspot",
   "homepage": "https://github.com/etherspot/skandha#readme",
@@ -24,7 +24,7 @@
     "@arbitrum/sdk": "3.1.4",
     "@eth-optimism/sdk": "3.0.0",
     "ethers": "5.7.2",
-    "types": "^0.0.10"
+    "types": "^0.0.11"
   },
   "scripts": {
     "clean": "rm -rf lib && rm -f *.tsbuildinfo",

packages/types/package.json

@@ -1,6 +1,6 @@
 {
   "name": "types",
-  "version": "0.0.10",
+  "version": "0.0.11",
   "description": "The types of Etherspot bundler client",
   "author": "Etherspot",
   "homepage": "https://https://github.com/etherspot/skandha#readme",